行为由驱力和习惯强度的相互作用决定。
Behavior is determined by the interaction of drive and habit strength.
Think of all the psychic energy expended in seeking a fundamental distinction between "algorithm" and "program".
实际发展水平与潜在发展水平之间的距离,前者由独立解决问题决定,后者由在成人指导下或与更有能力的同伴合作解决问题决定。